Frequencies for pve_forms variable in parkwork dataset :

  Number of |
    vehicle |
      forms |
  submitted |
  for MV in |
  transport |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        750       74.85       74.85
          2 |        228       22.75       97.60
          3 |         19        1.90       99.50
          4 |          2        0.20       99.70
          5 |          2        0.20       99.90
          6 |          1        0.10      100.00
------------+-----------------------------------
      Total |      1,002      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016